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Effect of annealing rate on film formation from poly(vinyl acetate) latex particles

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Date

2008

Author

Arda, Ertan
Kara, Selim
Pekcan, Mehmet Önder

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Citation

Pekcan, M. Ö., Arda, E. & Kara, S. (2008). Effect of annealing rate on film formation from poly(vinyl acetate) latex particles. Composite Interfaces, 15(1), 19-33. doi:10.1163/156855408783431291

Abstract

The photon transmission technique was used to monitor the time and temperature evolution of film formation from poly(vinyl acetate) (PVAc) latex particles. The latex films were prepared below the glass transition temperature (T-g) of PVAc. These films were annealed at various annealing rates above the Tg of PVAc. It was observed that transmitted photon intensity (I-tr) from these films increased at all annealing rates as the annealing time and temperature are increased. The increase in the I-tr is attributed to the increase in crossing density at the junction surface. The healing points (tau(H), T-H) were determined for various annealing rates and the healing activation energy (Delta H) was measured and found to be 43.4 kcal/mol. The interdiffusion (backbone) activation energies (Delta E) and reptation frequencies (nu) of PVAc chains were measured. The averaged value of Delta E was found to be 226.6 kcal/mol. It is observed that Delta E is unchanged but nu is increased as increasing the annealing rates.

Source

Composite Interfaces

Volume

15

Issue

1

URI

https://hdl.handle.net/11729/305
http://dx.doi.org/10.1163/156855408783431291

Collections

  • FEF - Makale Koleksiyonu | Fizik Bölümü / Department of Physics [147]
  • Scopus İndeksli Makale Koleksiyonu [785]
  • WoS İndeksli Makale Koleksiyonu [807]



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